摘要:
A novel phosphorous-containing epoxy resin having a naphthalene skeleton is suitable as an insulating material, such as a copper-clad laminate used in an electronic circuit board, and a sealing material, molding material, casting material, adhesive or film material used in an electric component. Furthermore, this epoxy resin is suitable as a material for an electrically insulating coating.
摘要:
A new epoxy resin represented by following general formula comprising, possessing one or more than one primary hydroxyl group and one or more than one epoxy group in one molecular, and said epoxy resin is useful for photo curing method. wherein E: epoxy resin residue c: 1, 2, 3 d: 1, 2,3 c+d=4
摘要翻译:由以下通式表示的新型环氧树脂包括在一个分子中具有一个或多个伯羟基和一个或多个环氧基,所述环氧树脂可用于光固化方法。 其中E:环氧树脂残基c:1,2,3d:1,2,3c + d = 4
摘要:
The object of the present invention is to provide a construction and coating composition that effectively utilizes vermiculite as a natural resource and is able to satisfy requirements for humidity control and/or deodorizing as well as an attractive appearance, while also offering superior balance between the amount and rates of moisture absorption and release, in particular. This object is achieved by a composition in which non-expanded vermiculite is blended into a base material so that the blended amount is 5-70 wt % of the total composition (solid portion). In addition, the above construction material can be converted into soil by crushing when it has become a waste construction material.
摘要:
The present invention features phosphorus containing epoxy resin compositions useful for imparting flame retardant properties to prepregs, resin-clad metal foils, and laminate boards constructed therefrom. The phosphorus containing epoxy resin composition (a) comprises a phosphorus containing epoxy resin (A) and a hardener. The phosphorus containing epoxy resin (A) has an epoxy equivalent of 300-500 g/eq. and comprises the reaction product of a phosphorus containing organic compound (B) and at least one epoxy resin (C). Phosphorus containing compound (B) is the reaction product of organic phosphorus compounds (b) having one active hydrogen atom bonded to a phosphorus atom and a quinone compound, wherein the molar ratio of (b) to quinone is from 1.25:1 to 2:1. This molar excess of (b) yields a phosphorus containing compound (B) that comprises both the reaction product of (b) and quinone, as well as un-reacted (b). Epoxy resin (C) is selected from a group of specific aromatic-containing epoxy resins, and the content of epoxy resin (C) comprises from 20 to 45 wt. % of (A).
摘要:
A database copy apparatus, a database copy method and a recording medium recorded with a database copy program, which increases the generality of database copying irrespective of the database structure, by partitioning a copy source database into predetermined regions, and copying records and inter-record connection relations contained in the respective regions to a copy target database, and extracting from the copy source database the inter-record connection relations respectively contained in different regions, and duplicating the inter-record connection relations copied to the copy target database, based on the extracted connection relations.
摘要:
A system is provided for duplication of an update database in a computer using partial data extraction. A copying module creates a copy database, including a partial copy, of the update database. A journal selecting module selects data, related to parts of the copy database in which the copy has finished, from an update data journal of the update database that is made when the copy database is being copied by the copying module. A duplication module updates the contents of the copy database created by the copying module with the contents of the update data journal selected by the journal selecting module.
摘要:
A thin vertically disposed camera adapted for use with a disk type film contained cartridge includes latch device for catching a compartment door at its closed position and rotatably supported connecting member to be connected to a cover member of the cartridge loaded in the camera for moving the cover member between an exposure window opening position and an exposure window closing position. The latch device includes a manually operable portion movable between a locking position for enabling the latch device to catch the compartment door and a releasing position for disabling the latch device. The rotation of the manually operable member from its releasing to locking position is same in the direction as the rotation of the connecting member for moving the cover member from its exposure window closing position to the exposure window opening position. A motion transmitting mechanism is provided in the camera for transmitting the rotation of said manually operable member to the connecting member.The motion transmitting mechanism consists of a couple of gear portions respectively provided on the latch member and the connecting member and a rotatably supported gear meshing with both gear portion.
摘要:
A recording medium includes a program causing a computer to execute the steps of (a) predicting a data storage condition of a database from a record operation, (b) computing a number of relocatable areas and a number of areas in an expansion direction based on the data storage condition predicted in step (a), and (c) detecting operation timing with respect to the database based on the numbers computed in step (b).
摘要:
In a dry type quenching facility for red hot coke wherein an operation pressure at the upper portion of the quenching station is set up within the range of 0 to +10 mmH.sub.2 O, red hot coke is charged into said station under a reduced pressure of 0 to -30 mmH.sub.2 O, to prevent escape of dust and smoke from said station and thereby prevent polluting of the environment.